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Binary Fission

asexual reproductive process in which one cell divides into two separate genetically identical cells

Chemosynthesis

autotrophic process where organisms obtain energy from the breakdown of inorganic compounds containing sulfur and nitrogen

conjugation

form of sexual reproduction in some bacteria where one bacterium transfers all of part of its genetic material to another through a bridgelike structure calles a pilus

endspore

Structure formed by bacteria during unfavorable conditions that contains DNA and a small amount of cytoplasm encased by a protective outer covering: germinates during favorable conditions.

nitrogen fixation

metabolic process in which bacteria use enzymes to convert atmospheric nitrogen (N2) into ammonia (NH3).

obligate aerobe

bacteria that require oxygen for cellular respiration

obligate anaerobe

bacteria that are killed by oxygen and can survive only in oxygen-free environments

toxin

poison produced by a bacterium

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